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Brake actuator for service braking and parking braking

A technology for driving brakes and actuators, which is applied in the direction of brakes, brake transmission devices, brake components, etc. It can solve the problems of high cost of ball screw and the inability to guarantee the zero position of the screw, and achieve the effect of simple structure

Pending Publication Date: 2021-09-17
ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that the cost of such a ball screw is high and due to its self-releasing behavior the screw does not guarantee a stable zero position

Method used

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  • Brake actuator for service braking and parking braking
  • Brake actuator for service braking and parking braking
  • Brake actuator for service braking and parking braking

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0044]Electronic brake actuator for service brake and parking brake, including caliper master cylinder 3, planetary gear mechanism, parking brake assembly and service brake assembly, the front surface of caliper master cylinder 3 is provided with a first arc Surface; The parking brake assembly includes a screw rod 1 and a nut 2, the screw rod 1 runs through the caliper master cylinder 3 and is connected to the planetary gear mechanism 5, and the planetary gear mechanism 5 drives the screw rod 1 to be rotatably arranged in the cavity of the caliper master cylinder 3 Inside; the nut 2 is sleeved on the screw rod 1 and moves axially along the screw rod 1, the nut 2 and the caliper master cylinder 3 are locked by the guide mechanism; the screw rod 1 and the nut 2 are arranged in the caliper master cylinder 3 of the brake caliper Inside, the brakin...

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Abstract

An electronic brake actuator for service braking and parking braking comprises a caliper main cylinder, a planetary gear mechanism, a parking braking assembly and a service braking assembly, and a first cambered surface is arranged on the front surface of the caliper main cylinder; the parking braking assembly comprises a lead screw and a nut, the lead screw penetrates through the caliper main cylinder and is connected with the planetary gear mechanism, and the planetary gear mechanism drives the lead screw to be rotatably arranged in a cavity of the caliper main cylinder; the nut is arranged on the lead screw in a sleeving mode and moves in the axial direction of the lead screw, and the nut and the caliper main cylinder are locked through a guide mechanism. The service braking assembly comprises a rotating piece and a ball, and the front side of the rotating piece is connected with the planetary gear mechanism; according to the parking braking device, the lead screw driven by the planetary gear mechanism is used for adjusting the gap between the discs and plays a role in braking, the balls and the ramp which are matched with each other are used for braking in the traveling braking process, and therefore the traveling braking and the parking braking are achieved through the simple structure.

Description

technical field [0001] The invention relates to the field of brake systems, in particular to an electronic brake actuator for driving brakes and parking brakes. Background technique [0002] With the increasing electrification of road vehicles, it is now common practice to use an electronic parking brake (EPB) in a vehicle to hold the vehicle stationary when it is not moving. At the same time, the demands placed on service braking systems are changing due to the introduction of new ways of decelerating vehicles through regenerative braking. [0003] While the use of electronically controlled parking brakes brings more functionality, existing brake calipers still use a hydraulic transmission medium to control service braking functions. Compared with the current new energy vehicles, the requirements for friction brakes are decreasing day by day, especially the friction brakes on the rear wheels. This type of brake has a complex structure, and the manufacturing cost, installat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74B60T13/02B60T1/00
CPCB60T13/746B60T13/02B60T1/00
Inventor 巴洛赫·莱文特孙明海
Owner ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD
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